Governor for gasolene-engines.



No. 836,096. 7 PATENTED NOV. 20, 1906. G. GOBMAGK, JR. & F. G. ZUMDAHL.

GOVERNOR FOR GASOLENE ENGINES.

APPLICATION FILED PEB.5,1904.

2 SHEETS-SHEET 1 loo 2% V ESE-E PATENTED NOV. 20, 1906. G. OORMAOK, JR. & F. O. ZUMDAHL.

GOVERNOR FOR GASOLENE ENGINES.

APPLICATION FILED FEB-5, 1904.

2 SHEETS-SHEET 2- the gasolene-engine.

UNITED STATES PATENT OFFICE.

GEORGE CORM AOK, JR, AND FREDERICK C. ZUMDAHL, OF ROCKFORD,

ILLINOlS.

GOVERNOR FOR GASOLEN E-ENGINES'.

lilo. 836.096.

Specification of Letters Patent.

Patented Nov. 20, 1906.

Application filed Pebruary 5, 1904 Serial No. 192,106.

To all whom, it may concern:

Be it known that we, GEORGE COR-MACK,

Jr., and FREDERICK C. ZUMDAHL, citizens of the United States, residing at Rockford, in the county ofNVinnebago and State of Illinois, have invented certain new and useful Improvements in Governors for Gasolene- Engines, of which the following is a specification.

The object of this invention is to vary the speed of a gasolene-engine by a connection which varies the influence of the governor.

In the accompanying drawings, Figure 1 is an elevation of a portion of an explosive-engine, showing the relation of our improvements thereto. Fig. 2 is a side elevation of a governor and its connection with the parts of a gasolene-engine. Fig. 3 is. a fragmental gine acted upon by the governor and our improvements in connection therewith. Fig. 4

is a horizontal section on dotted line a, Fig. 2. Fig. 5 is an elevation of a portion of a gasolene-en'gine, showing the rocker-arm connection with the exhaust-valve.

The shaft 1 is constantly rotated, which will rotate the cam 2 and the beveled toothed wheel 3. The shaft 1 is supported at one point by the bracket 4, which has a tubular bearing 5 connected therewith; A shaft 6 is held in place'by the bearing 5, its upper end supporting the cap '7 and itslower end a beveled toothed pinion 8, meshing with the teeth of the beveled toothed wheel 3. Balls 9 have a pivotal connection with the cap 7 and have arms 10 engaging a sliding sleeve 11 mounted on the shaft 6. Springs 12 connect the balls. A collar 13 has a connection with the sleeve 11, and the arm 14 of a bellcrank lever has aconnection with the collar. The arm 15 of the bell-crank lever has a rod 16 pivotally connected to its free end. This bell-crank lever is pivotally supported by the bracket 17, extending from the bearing 5. A- -.roller 18 is supported by a rocker-arm 19. This rocker-arm or exhaust-valve lever is employed to open the exhaust-valve 39 of This arm 19 has a plate 20 secured to its upper face, which is provided with a ledge 21. A lever 22 is pivoted at 23 to any stationary part of the engine, its lower end provided with a plate 24,

1 adapted to engage the ledge 21 of the plate 1 20. The upper end of this lever supports a double-ended rocking bar 25, one end provided with a horizontal opening 26 and its other end provided with an opening 27.

The rod 16 passes through the opening 26 and has collars 28 set either side of the bar. A rod 29 is located in the opening 27 of the rocking bar and has two collars 30 and 31 secured thereto, one each side of the bar. A spring 32 surrounds the rod 29 and is located between the collar 30 and bar, and a spring 33 surrounds the rod 29 and is located be, tween the collar 31 and bar. The other end of this rod 29 has a pivotal connection with a hand-lever 34, which has a pivotal connection with a toothed segment 35. The teeth of this segment 35 are each side of the center notch 38. The latch 39 is operated by a thumb-lever, as is common in such constructions.

When the governor shifts its position under varying speeds, the lever 22 is oscillated, which when the rocker-arm 19 is depressed by the projection 2 will at times engage the seat 21 and hold the rocker-arm from returning, thereby holding the exhaust-valve open, which takes place when the engine is running above its normal speed; but when the'engine is running below its normal speed the lever will stand free of the seat, allowing the exhaust-valve to close at each compression.

By means of the hand-lever 34 the rod 29 can be moved in its lengthwise directionfor instance, to the i'ight which will carry the spring 32 into engagement with the arm 25, thereby moving the arm and holding the lever 22 in engagement with the seat 21, which will hold the exhaust-valve open and stop or slow down the speed of the engine. By moving the hand-lever to the left the spring 33 will be brought into engagement with the arm 25, which-will hold the lever 22 free of the seat and permit an explosion at each compression, thereby increasing the speed of the engine. 34 is'returned to its central position, the gov' ernor will take u its work and hold the enine at its norina speed.

It will be noticed that there is some distance between the springs 32 and 33 and the bar 25. This is to allow sufficient play, for

When the hand-lever tionary;

thegovernor to actr-pvithtmt being interfered with by lever 34,.- Which remains Stahaust-valve, a'hando erated rodconnected with the valve-control ing device, a spring on' therod each side of said device, and a collar 'outside a of each spring, the springs being vseparated sufficiently to permit a movement of the-device without engaging them;

2- Anattachment for 'gasolene-engines,

comprising a governor, a connection between 1 the governor and devices controlling the exhaust-valve, ahand-lever, a rod connecting the hand-lever and exhaust-valve-controlling device, a sprin on the rod each side of said device and a co lar outside of each spring, the 20 springs separated sufficiently to permit a nlil'ovement of the device Without engaging t em.

GEORGE CORMACK, JR.

FREDERICK C. ZUMDAHL. Witnesses:

A. .O. BEHELfl:

E. BEHEL. 

